Hand vibrator



. July 18, 1933.

A. J. DREMEL 1,918,458

HAND VIBRATOR Filed Oct. 11, 1930 @MUQLMW fiEEEFd-DEEMEZ Patented JulyPATENT or rmg V ALBERT .LrItEME or ma isconsin I HAND vI BRA'roRApplication filed October 11, 1930, Serial No. 433,058.

This invention pertains to hand vibrators,

and-more particularly to a vibrator adapted to be attached to the handof anoperatorlto assist in treating and massaging 1 various ""parts ofthe-body, V

' The invention has primarily forits object the provision of acomparatively simple, 1n-' expensive, and eflicient device of theforegoing character, in which the casingis par- '-tially supportedsubstantially rigidly upon l a portion of the hand, while the vibratorymember engages another portion of the hand :to further supportthe casingand to V impartvibratory action to the hand.-

Incidental tothe foregoing, aemore specific obje'ct' resides in theprovision of a casing- -'for housing "an electroma'gnet and sup portedupon a portion of the-hand, and an armature actuated by theelectromagnetand.

"engaging another portion of the hand to effect vibration'of the same.

A further object resides in the novel means provided :to facilitateproper positioning and: attachment of the device upon I thei'hand of-theoperator. l

Another object of the invention resides in the provision of novel meansfor regulating 'vibratoryaction of the armature. v i A still furtherobject resides in the specific lnethod ofmounting the electromagnet andarmaturewithinthe casing, whereby an .exceedingly compact and lightstructure is obtained to effect the most desirable support I andengagement between the vibrat'or and "operators hand; 1 ;f With theabove and other objects in view, which will appear as the descriptionproceeds, the invention resides in the novel con- ;struction,combination and arrangement of parts substantially as hereinafterdescribed andmore'parti cul'arly defined by'the appended claims, itbeing understood that such changes in thelprecise. embodiment of theherein disclosed invention may be made as comjegwithin the scope of theclaims. i

In the accompanying. I drawing is illustrated one complete example ofthe physical embodiment of the present invention constructed;accordingQto the best mode so faraccordance with the present invention;

tionproceeds that othertypes of actuating means may be employed, such asa makeand-break motor, or arvibrating element driven by'aconventionalmotor through a flexible shaftfiuhe essential features of thepresentinvention residing in themanner of supporting the vibrator -'upon:the hand and providing direct engagement between the hand and'thevibratory member. 7 Referring to the particular form of theinventionillustrated, the numeral 1 designates a casing secured to abase plate 2, which plate ;is provided with arestricted longitudinalopening 3.

Secured to the topiof the casing by means of a' screw 4 is aconventional E-shaped core 5 which carries a winding 6 comprising theelectromagnet, which actuates the armature 7. As best shown in Figure 1,the armature. 7 comprises the vibratory element, andv in turn is mountedupon a u-shaped spring "8, which is: secured between, the casing 1 andthe core 5; Obviously,'as the core 5 is energized by alternatingcurrent, the armature 7 will be alternately repelled and at-,

tracted at the rate of the-usual'sixty cycles per second, thus impartinga high rate of 9 vibration to the armature. V

Secured to the armature 7 adjacent its outerl end is a bracket 9-whichcarries an arcu ate plate 10 having secured thereto a pad.

llpreferably formed of rubber, or sim l 'r 95,

cushioning material. V

To control the vibr'atorymovement of the armature 7,fanadjustment ismounted on the '5 casing 1 whichcomprises a'stud 12 threaded through aboss 13 formed on the casing. .The

outer end of the stud is provided with a knurled thumbpiece 14,extending down over the boss and spaced therefrom. A coiled spring 15,positioned between the boss and the thumbpiece, serves to create,friction to hold the stud12 in adjusted position during the rapidvibration imparted to the casing in operation ofthe'vibrator. i

'As best shown in Figure 1, the stud 12 is provided with a central borefor reception of a headed pin 16, which in turn is resiliently cushionedupon a rubber block 17, or any other suitable means. Obviously,

as the stud l2'is threadedinto the boss and the headed pin 16 engagesthe spring 8, the

QI'IIlHtllIG-rTWl-llbfb forced closer to the core 5, thus limiting thevibratory action'ofthe V same.

. electromagnet are connected. r

omateriah 7 ,1 r 1 "From the foregoing-description taken in yAconventional knife'switch 18, carried by thebase plate 2, serves toform'a contact be-:

tween the brushes 19 carried by thedbase plate, and to which the circuitwires to the Adjacent the rear end of'the casing, the

"base plate 2 has secured thereto asubstantiallyrigid supporting bracket20, which carries an arcuate block 21 similar to the block 10,

andhas secured thereto a saddle or pad122,

adapted .to engage-therear portion ofthe handadjacentthe region of thewrist.

Inorder to properly position and attach the vibrator to the operatorshand,'-. fle'xible straps 23 are provided which ha ve their eX-tremities secured to the rods 2 1 secured to f thenbottom of the baseplate 2 adjacent its longitudinal edges, the rods 24 being mounted'ineyes 25 carriedwfby the base plate to' facilitate their withdrawal forattachment or replacement of the straps when desired. mWhile the'straps23, as illustrated, are

formed of coiled spring, itwill be readily understood that any typeofstrap may be employed, preferably formed of resilient connection withthe drawing, it is believed 7 that the operation :of the device will bequite apparent, in that the same is positioned upon the outside of theoperatorshandwith the rear supporting pad engaging the back of the handadjacent'the wrist, and the arma ture pad 11 engagedv over the back ofthe fingers-intermediate the second and thirdjoints,the straps-23straddling the palm of the hand and serving to hold the vibratorsecurely in position.

'As the electromagnet is energized, causing the-armature 7 ftoj berapidly vibrated,-vibratory movementi is transmitted to the fingers ofthe hand which, when placed on any part of the body results in impartinga massaging action to thesame, thusdoing away with massaging cups or thenecessity'of manual movement upon the part of the operator, which isbothtedious a-nd tiresome.

It will also be noted that the vibratory :1, A hand vibrator comprisinga casing,

resilient means carried by the casing for connection with the hand, asubstantially rigid angle support carried ':by the rear :end of thecasing'for engaging the back of the hand,'and a vibrator mounted in thecasing,

and extending partially below the lower.

face of the casing fordirect engagement with the fingers of the hand to'vibratethesame 2;;A vibrator for attachment to ahand comprising acasing, a substantially rigid;- support carried .bythe casing forengaging a portion of the hand, a vibratory member comprisingan-armature, a spring: for cone necting. said armature with said-casing,. means carried by'said armature for-engag ing another portionof the hand, and an electromagnet housed within the-casing fora -tuatingsaid armature;

3. A vibrator for attachment to a hand comprising a casing, asubstantially rigid support carried by the casing for engaging a portionof the hand, a vibratory memberi comprising an armature, a spring IEOIZ-COI1- meeting said armature With said leasing,

means carried byisaid armature for engaging another portion ofthe hand,anelectromagnet, housed within'the' casing for actuating said armature,and means for attaching the casing'tothe hands V i o 4. A vibrator forattachment to a hand comprising. a' base plate, provided with arestricted longitudinal opening, a casing connectedto said base plate,-asupport carried by said base plate for engaging a portion of the hand, a'U-shaped spring secured to the top of the casing and having itsoutercnd projecting through said slot,'an" armature connectedto'saidcasing and positionediwith in said slot, said armaturebeing'supported upon another portion of thehand, means engaging saidspring for'regulating the movement of said armature, an electromagnetsecured to said casing and straddledby said spring, and means forattaching saidcasing to the hand. V

5. A hand vibrator comprising acasing,a"

substantially rigid support-carried by the nected to the casing anddepending there from in spacedrelation With said rigid support forengagement with another portion of the hand, and an electromagnetmounted within the casing for actuating said vibratory member. 7 V

, 7. A vibrator for attachment to a hand comprising a casing, asubstantially rigid :suppor't carried by the casing and depend- 7 ingtherefrom for engaging a portion of the hand, a vibratory memberresiliently connected to the casing and depending therefrom in spacedrelation with said rigid support for engagement With another portion ofthe hand, an electromagnet mounted Within the casing for actuating saidvibratory mem'- ber, and means for attaching the casing to the hand.

ALBERT J. DREMEL.

